( n. )
A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat.
( n. )
A soft white substance constituting the medullary sheats of nerve fibers, and composed mainly of cholesterin, lecithin, cerebrin, albumin, and some fat.
Webster's Revised Unabridged English Dictionary. Пересмотренный полный словарь английского языка Webster. 2012